there has been no "difficult period" you are just making bad decisions that leads to your losses.

first of all you are using the word "win". I  don't know if it is a language thing or you actually think you are gambling and winning some money based on your trades. in which case you need to stop that and start learning how to trade for real instead of randomly buying coins and hoping you "win" some profit.

as for the period I have to say, the market is actually in a pretty good shape all things considered. bitcoin is slowing down and letting people accumulate more at lower prices before the next rally starts and the altcoins are still getting pumped pretty hard these days. you just have to make sure to invest in them before the pump not after. and most people invest in them after their pumps are over already and expect to "win" profit.